[wrankin]

Originally Posted by Emoto

Sorry, but your link may be broken.

I think this is what you intended? http://gmauthority.com/blog/2019/08/...sion-problems/

Edited the link in that post. Thanks

Bill

[Emoto]

Originally Posted by wrankin

Edited the link in that post. Thanks

Bill

Thank you for posting it! It really looks very much like good news. Naturally, I remain somewhat suspicious, but I hope it is true.

[Wonkymom]

Mine is doing it again- so sick of this!!!

[Emoto]

Originally Posted by Wonkymom

Mine is doing it again- so sick of this!!!

That's a drag. Can you confirm what the part number was for the fluid that they used?

[SSport16]

Originally Posted by Wonkymom

Mine is doing it again- so sick of this!!!

Did you have the new flush/fill with the new Mobil 1 fluid this year?

[Elite Engineering]

Again to remind all, it is a poor design in the torque converter itself. The shudder is from aeration of the fluid and the flushes and new fluid is only a Temporary band aid to get you past the warranty period. And what occurs is a loss of hydraulic pressure to keep the frictions and steels clamped securely, so the shudder is parts slipping as the pressure fluctuates to them. This DOES cause damage over time and even the replacement TC from GM is the same poor design. The only real fix is a purpose built converter. Just ask via email if you want more info:


Tech@EliteEngineeringUSA.com


Cheers!!

[Emoto]

Originally Posted by Elite Engineering

Again to remind all, it is a poor design in the torque converter itself. The shudder is from aeration of the fluid and the flushes and new fluid is only a Temporary band aid to get you past the warranty period. And what occurs is a loss of hydraulic pressure to keep the frictions and steels clamped securely, so the shudder is parts slipping as the pressure fluctuates to them. This DOES cause damage over time and even the replacement TC from GM is the same poor design. The only real fix is a purpose built converter. Just ask via email if you want more info:


Tech@EliteEngineeringUSA.com


Cheers!!

Why would GM's engineers design it that way? Is there some upside to that aspect of the design? Wasn't there something in the TSBs about the old fluid being hygroscopic and that causing problems?

[Elite Engineering]

EMOTO,


GM did not design this to have the issue, the A8 was a new trans for the 2016 Model year and this did not pop up in the testing ahead of release. So it surly was not intentional. Just a design flaw that would cost far too much to fix properly so the fluid flush and change band aid is what they are doing. The goal is to get the problem vehicles past the warranty period as it is a huge liability. The solutions are there for this wishing to fix it themselves, but that's about it. On average, the US car buyer will trade within 3 years and have less than 36k miles on it, so far more cost effective to let it play out at this point.


Hope this answers your question.

[Mgsouthwest2001]

Originally Posted by Elite Engineering

EMOTO,


GM did not design this to have the issue, the A8 was a new trans for the 2016 Model year and this did not pop up in the testing ahead of release. So it surly was not intentional. Just a design flaw that would cost far too much to fix properly so the fluid flush and change band aid is what they are doing. The goal is to get the problem vehicles past the warranty period as it is a huge liability. The solutions are there for this wishing to fix it themselves, but that's about it. On average, the US car buyer will trade within 3 years and have less than 36k miles on it, so far more cost effective to let it play out at this point.


Hope this answers your question.

You are just trying to capitalize on people's concern over this and fuel their fears to hawk your own product. I find that irritating. I didn't buy an over 40K car with a warranty to have to buy some stupid aftermarket part to fix an issue. So far the new fluid flush is working on my Camaro but if the shudder comes back I will just get rid of the thing before I spend my own money fixing something GM is responsible for.

[Emoto]

Originally Posted by Mgsouthwest2001

You are just trying to capitalize on people's concern over this and fuel their fears to hawk your own product. I find that irritating. I didn't buy an over 40K car with a warranty to have to buy some stupid aftermarket part to fix an issue. So far the new fluid flush is working on my Camaro but if the shudder comes back I will just get rid of the thing before I spend my own money fixing something GM is responsible for.

To some extent, I feel the same way, but to be fair, it is also possible that Elite is sincere and has ways of eliminating the problem, should it re-occur. I can't say for sure.

Additionally, someone posted this in another thread; an additive that is claimed to help, and someone replied that it had helped their car:


Here: https://www.camaro6.com/forums/showt...2#post10606692

[KMPrenger]

Originally Posted by Mgsouthwest2001

You are just trying to capitalize on people's concern over this and fuel their fears to hawk your own product. I find that irritating. I didn't buy an over 40K car with a warranty to have to buy some stupid aftermarket part to fix an issue. So far the new fluid flush is working on my Camaro but if the shudder comes back I will just get rid of the thing before I spend my own money fixing something GM is responsible for.

I'm on your side here, but unfortunately you'll likely spend more money on your trade than you would have doing a TC swap. I guess it doesn't matter if you would have been trading it soon anyways, but just saying. Noone will want to buy the car if they test drive it and it shudders like crazy.

[MANNAXMAN]

Originally Posted by KMPrenger

Sorry for the late response guys. This is something I posted in another thread:

Anyone have the actual July revision of the TSB? I went to a local dealership with a printed copy of the image KMP posted, with the text "Diagnosis beyond the customer complaint is not required if vehicle was built prior to production dates indicated above" highlighted. The responses I received were "This is for a Colorado" (I had to explain that the same trans/TCC are used in multiple vehicles) and "We still need a transmission tech to diagnose the issue."

[formare]

Just had my work done - definitely made a huge difference. Work was completed a few weeks ago. So far, excellent results. Feels like the shifts are better than when it was new.

[MANNAXMAN]

Originally Posted by i007spectre

So when you guys are contacting your dealership are you giving them the TSB number or just describing the issue?

I have provided the TSB # and described the issue. Two local dealerships still say they need to diagnose it prior to performing the service as described in the TSB.

Originally Posted by i007spectre

Took my car in yesterday and told them about the issue. They didn't even take the car for a drive and agreed to do the flush. Waiting for the call today to pick up.

Originally Posted by The_Dudebozo

Took mine into the local dealer. They send the recent TSB said to go ahead and flush without needing to replicate the issue. All said and done, car is driving great.

i007spectre and The_Dudebozo - How big are the dealerships you took your cars to? The two closest to me are pretty big and apparently don't offer that type of customer service, even when you have documentation indicating a diagnosis isn't required. I spoke with service managers at both locations.

Originally Posted by skywrench

Do you have that TSB number? I felt what I think was the dreaded shutter yesterday and called the dealer today and he's insisting they have to test drive it before they'll flush it.

I'm getting the same spiel.

Originally Posted by KMPrenger

FYI to everyone, It was more or less stated above, but the latest version of the shudder TSB now states to go ahead and just do the flush if it has not yet been performed. This is good news, and what GM should have done from the beginning with this latest fluid if they were so confident in it.

It also makes it sound as though the factories switched over to the new fluid in February of 2019, so 8 speeds built after that date should be good to go.

The replies I'm getting from service managers are along the lines of "They are service bulletins and just a reference for the technicians. We still need to diagnose and confirm that the issue matches what is described in the TSB."

Originally Posted by MANNAXMAN

Anyone have the actual July revision of the TSB? I went to a local dealership with a printed copy of the image KMP posted, with the text "Diagnosis beyond the customer complaint is not required if vehicle was built prior to production dates indicated above" highlighted. The responses I received were "This is for a Colorado" (I had to explain that the same trans/TCC are used in multiple vehicles) and "We still need a transmission tech to diagnose the issue."

I found the latest version of TSB 18-NA-355 two weeks ago.